Question | Answer |
Small, irregularly shaped, planet-like objects. Found in the Asteroid Belt. | Asteroids. |
MAde of icy dust particles and frozen gases. Look like bright balls with long, feathery tails. | Comets. |
Pieces of space debris. When they hit Earth, they're called meteorites. | Meteoroids. |
Oceans, lakes, rivers, and other bodies of water. About 70% of Earth's surface is water. | Hydrosphere. |
The earth's crust. About 30% of Earth's surface is land. | Lithosphere. |
Layer of gases extending above the planets surface. The air we breath is part of this. | Atmosphere. |
The part of Earth that supports life. Life outside this exists only with the assistance of mechanical life-support systems. | Biosphere. |
A deep, narrow valley with steep sides. | Canyon. |
Land built up at the mouth of a river. | Delta. |
Flat or gently rolling land, usually not far above sea level. | Plateau. |
curved or pointed part of a coastline that sticks out into the water. | Cape. |
narrow piece of land connecting two larger pieces of land. | Isthmus. |
A small stream of water that flows through the land feeding into a river. | Tributary. |
Super-hot, solid. Made up of iron and nickel under enormous pressure. Inner layer of the Earth. | Core. |
Think layer of hot, dense rock. Middle layer of the Earth. | Mantle. |
Outer layer of the Earth. A rocky shell, forming the Earth's surface. | Crust. |
Theory that the continents were once joind and then slowly drifted apart. | Continental Drift. |
240 million years ago, the continents moved together to form one big continent called this. | Pangaea. |
All of the physical processes that create many of the Earth's physical features. | Plate Techtonics. |
This is when the heavier sea plate dives beneath the lighter continental plate. | Subduction. |
When sea plates pull apart. | Spreading. |
When layers of rock bend. | Folding. |
Cracks in the Earth's crust. | Faults. |
One of the most Earthquake-prone areas on the planet. | Ring of Fire. |